"Gasterosteus pungitius" shine sunan kimiyya na nau'in da aka fi sani da "sannun kafa goma." Wani ɗan ƙaramin kifi ne da ake samu a Arewacin Hemisphere, musamman a Turai da Arewacin Amurka. Sunan "Gasterosteus" ya fito ne daga kalmomin Helenanci "gaster" ma'ana ciki da "osteos" ma'ana kashi, yana nufin kashin kashin da ke rufe jikinsa. "Pungitius" ya fito ne daga kalmar Latin "pungere" ma'ana ta soka ko hargitsi, tana nufin kashin bayanta da na ƙwanƙwasa.